Character
Mxyzptlk
Mxyzptlk in Superman: The Animated Series (1996), played by Gilbert Gottfried.
Mr. Mxyzptlk (pronounced "mix-yez-spit-lick") was an imp from the Land of Zrff in the Fifth Dimension obsessed with beating Superman.
Read more about Mxyzptlk on the DC Animated Universe wiki at Fandom